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Global Issues Network 2013 - Global Warming

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Ezgi E

on 1 June 2014

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Transcript of Global Issues Network 2013 - Global Warming

Examining
Different Perspectives
on Global Warming
in a Globalizing World

Let's See
Environmental
Philosophies
Ezgi Ercan
Ogün Kargın
Ömer Ekmekçioğlu
IDF Bilkent High School
Environmental Philosophies
Ecocentrism
Ecocentrism
Anthropocentrism
Technocentrism
Nature Centered
People Centered
Technology Centered
What effects them?
There are inputs and outputs;
Are there any other inputs
or outputs on your mind?
Lets see different
environmental
philosophies
Nature is the most important thing.
Nature is not a property of humankind.
The disturbance to nature should be minimized.
Implication that materialism for its own sake is wrong and that economic growth can be geared to providing for the basic needs of those below subsistence levels.
Economic growth may stop.
Reuse,
Reduce,
Recycle
Reuse,
Reduce,
Recycle
Anthropocentrism
Technocentrism
Discussion 1:
Which philosophy would be more
useful for sustainability?
Discussion 2: Ecocentric or Technocentric,
Which view?

If you are thinking a year ahead, plant a seed.
If you are thinking a decade ahead, plant a tree.
If you are thinking a century ahead, educate the people.
(Chinese proverb)
The community
Importance of education
Economy is more important
that the nature
We can solve the problems
using technology
outputs:
Deep Ecologists
Self Reliance Soft Ecologists
Environmental Managers
Cornucopians
Solutions
Revving up
renewables
Greening
transportation
Managing forests
and agriculture
Exploring
nuclear
Developing
and deploying new
low-carbon
and zero-carbon
technologies
Increase
Public Awareness
Personal
acts
Ensuring
sustainable
development
Regional Solutions
What to do?
Boosting
energy efficiency

We must reduce emissions
Support renewable energy
Support energy sufficiency industries.
Economics, sociology, and politics are the main topics of the path going through the solution.

Actually we aren’t in a good shape. Even if we cut the green gas emissions, earth would
continue warming but if we reduce the green gas emission, we can reduce the effect from 10
to 2.5 Fahrenheit.

According to the IPCC, we'd have to reduce GHG emissions by 50% to 80% so there is no
time to waste.
The car you drive
Minimize
the fuel consumption
Choose
Clean Power
Unplug a freezer
Get
home
energy
audit
Light Bulbs
Buy good wood
Conserve Water
Plant a Tree
Turn off electric devices
Plants
and
Trees
http://video.nationalgeographic.com/video/environment/going-green-environment/green-home-
makeover/green-cleaning-gg/
What is Global Warming?
Rise in Average Temperature
Oceans and Athmosphere
Industrial Revoltuion
19th Century
REASONS
CO2 Emission caused by;
Fossil Fuel Burn
Burning
Methane Emission
Increased use of chemical fertilizers
Deforestation

Rise in sea levels
Massive crop failures


Greenhouse
Effect
#1
#2
#3
#4
#5
Increased killer storms
Widespread extinction of species
Disappearance of coral reefs
#6
#7
#8
#9
#10
GREENHOUSE EFFECT!
What is it?
Thermal radiation from a planetary
surface is absorbed by Greenhouse Gases
Water
Ozone
Methane
Carbon dioxide
Radiation is re-radiated in all directions.
One of the directions is surface of the Earth.
Elevation of the average surface
temperature above what it would
be in the absence of the gases.
How a greenhouse works?
Sun enters the
greenhouse from
glass roof.
Sun warms up
the greenhouse
As long as there are
no connection
with the
outside,
air stays
warm inside.
Main principle:
CONVECTION!
CLIMATE CHANGE
Change in weather
during a given time.
Orbital Changes
Solar output
Volcanism
Ocean Variability
HUMAN FACTOR!
Reigonal Effects of
Climate Change
North America
Decreasing snowpack in Western Mountains,

Intensed storms
Tropical Rainforests turning into Savannah.
Extinction of tropical species
Significant losses of water.
Latin America
Europe
Inland flash floods,
Erosion and intense sea level rise,
Reduced snow cover
Africa
Compromised agricultural production
Increased water stress
Asia
Decreased water availability,
Coastal areas at risk,
Floods and Droughts
WHAT WILL
HAPPEN
AT THE
END?
“Scientists have come up with the firmest evidence so far that global warming will significantly increase the intensity of the most extreme storms worldwide. The maximum wind speeds of the strongest tropical cyclones have increased significantly since 1981, according to research published in Nature this week. And the upward trend, thought to be driven by rising ocean temperatures, is unlikely to stop at any time soon.”
“Climate change is expected to have the most severe impact on water supplies. “Shortages in future are likely to threaten food production, reduce sanitation, hinder economic development and damage ecosystems. It causes more violent swings between floods and droughts.”"

Climate change now represents at least as great a threat to the number of species surviving on Earth as habitat-destruction and modification.” Chris Thomas, conservation biologist at the University of Leeds
Full transcript